Inciso 3
Column
Estadísticas descriptivas
| Name | select(ecommerce, -c(Emai… |
| Number of rows | 500 |
| Number of columns | 5 |
| _______________________ | |
| Column type frequency: | |
| numeric | 5 |
| ________________________ | |
| Group variables | None |
Variable type: numeric
| skim_variable | n_missing | complete_rate | mean | sd | p0 | p25 | p50 | p75 | p100 | hist |
|---|---|---|---|---|---|---|---|---|---|---|
| AvgSessionLength | 0 | 1 | 33.05 | 0.99 | 29.53 | 32.34 | 33.08 | 33.71 | 36.14 | ▁▃▇▆▁ |
| TimeonApp | 0 | 1 | 12.05 | 0.99 | 8.51 | 11.39 | 11.98 | 12.75 | 15.13 | ▁▃▇▅▁ |
| TimeonWebsite | 0 | 1 | 37.06 | 1.01 | 33.91 | 36.35 | 37.07 | 37.72 | 40.01 | ▁▃▇▅▁ |
| LengthofMembership | 0 | 1 | 3.53 | 1.00 | 0.27 | 2.93 | 3.53 | 4.13 | 6.92 | ▁▃▇▃▁ |
| YearlyAmountSpent | 0 | 1 | 499.31 | 79.31 | 256.67 | 445.04 | 498.89 | 549.31 | 765.52 | ▁▅▇▃▁ |
AvgSessionLength TimeonApp TimeonWebsite LengthofMembership
1.370163 1.365696 1.367175 1.196052
YearlyAmountSpent
104.275551 AvgSessionLength TimeonApp TimeonWebsite LengthofMembership
6.607234 6.618842 6.091334 6.652788
YearlyAmountSpent
508.847880 # A tibble: 5 × 3
Variables Asimetria Curtosis
<chr> <dbl> <dbl>
1 AvgSessionLength -0.0321 3.00
2 TimeonApp -0.0889 3.11
3 TimeonWebsite 0.0121 2.89
4 LengthofMembership -0.106 3.33
5 YearlyAmountSpent 0.0347 3.45Column
Interpretación estadísticas descriptivas
AvgSessionLength
TimeonApp
TimeonWebsite
LengthofMembership
YearlyAmountSpent
Inciso 4
Column
Gráficos univariados
Gráficos bivariados con “Yearly Amount Spent”
Column
Interpretación gráficos univariados
Interpretación gráficos bivariados
Inciso 5
Column
Gráfico de “AvgSessionGroup”
Descripción de “AvgSessionGroup”
Column
Interpretación estadísticas descriptivas y gráfico de “AvgSessionGroup”
Inciso 6
Column
Boxplot de la variable “Yearly Amount Spentr” por categoría
Column
Interpretación del Boxplot de la variable “Yearly Amount Spentr”
Inciso 7
Column
Matriz de las correlaciones
Gráficos bivariados con “Yearly Amount Spent”
Column
Columna Interpretación
Inciso 7B
Column
Matriz de las correlaciones
Heatmap de correlación
Inciso 7C
Column
Matriz de las correlaciones
Gráficos bivariados con “Yearly Amount Spent”
Column
Columna Interpretación
Inciso 8
Column
summary(modelo) - R2.train & R2.valid
Call:
lm(formula = YearlyAmountSpent ~ AvgSessionLength + TimeonApp +
TimeonWebsite + LengthofMembership, data = aux1, subset = train)
Residuals:
Min 1Q Median 3Q Max
-30.2617 -6.3368 -0.3456 6.8310 30.1189
Coefficients:
Estimate Std. Error t value Pr(>|t|)
(Intercept) -1044.0993 24.9478 -41.851 <2e-16 ***
AvgSessionLength 25.5468 0.4951 51.595 <2e-16 ***
TimeonApp 38.9498 0.5073 76.775 <2e-16 ***
TimeonWebsite 0.3445 0.4871 0.707 0.48
LengthofMembership 61.3558 0.5000 122.719 <2e-16 ***
---
Signif. codes: 0 '***' 0.001 '**' 0.01 '*' 0.05 '.' 0.1 ' ' 1
Residual standard error: 9.922 on 395 degrees of freedom
Multiple R-squared: 0.9839, Adjusted R-squared: 0.9837
F-statistic: 6034 on 4 and 395 DF, p-value: < 2.2e-16[1] 0.9838982[1] 0.9851772Column
Ajuste en ambas muestras
